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Tjoumakaris SI, Roy JM, Amin-Hanjani S, Charbel FT, Dabus G, Fisher M, Gounis M, Hoh BL, Liebeskind DS, Linfante I, Samaniego EA, Toth G, Zaidat OO, Bhogal P, Arthur A, Wakhloo AK, ARISE II Academic Industry Roundtable. ARISE II Consensus on the Management of Intracranial Atherosclerotic Disease. Stroke 2025; 56:1636-1641. [PMID: 40408521 DOI: 10.1161/strokeaha.124.050336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2024] [Revised: 03/11/2025] [Accepted: 03/26/2025] [Indexed: 05/25/2025]
Abstract
Intracranial atherosclerotic disease (ICAD) is one of the leading causes of ischemic stroke worldwide. Despite advances in its diagnosis and management, there is no clear consensus on best practices to manage ICAD. This report summarizes the ARISE II (Roundtable Discussion With Industry and Stroke Experts) consensus in treating ICAD. The consensus underscored the importance of lifestyle modification and medical management in patients with ICAD. Patients who fail medical management are candidates for endovascular treatment. Open surgery is not recommended in patients who lack demonstrated hemodynamic insufficiency. The consensus also identified gaps in knowledge about the optimal duration of antithrombotics, the effect of the CYP2C19 genotype on medical management, the need for newer devices, and the standardization of antithrombotic protocols before stenting in an acute setting. Optical coherence tomography requires additional clinical data before defining its role in the diagnosis of ICAD.
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Affiliation(s)
- Stavropoula I Tjoumakaris
- Department of Neurological Surgery, Thomas Jefferson University Hospital, Philadelphia, PA (S.I.T., J.M.R.)
| | - Joanna M Roy
- Department of Neurological Surgery, Thomas Jefferson University Hospital, Philadelphia, PA (S.I.T., J.M.R.)
| | - Sepideh Amin-Hanjani
- Department of Neurological Surgery, University Hospitals Cleveland Medical Center/Case Western Reserve University School of Medicine, OH (S.A.-H.)
| | - Fady T Charbel
- Department of Neurological Surgery, University of Illinois at Chicago (F.T.C.)
| | - Guilherme Dabus
- Department of Interventional Neuroradiology and Neuroendovascular Surgery, Miami Neuroscience Institute and Miami Cardiac and Vascular Institute-Baptist Hospital, FL (G.D.)
| | - Marc Fisher
- Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA (M.F.)
| | - Matthew Gounis
- Department of Radiology, University of Massachusetts Chan Medical School, Worcester (M.G.)
| | - Brian L Hoh
- Department of Neurosurgery, University of Florida, Gainesville (B.L.H.)
| | - David S Liebeskind
- Department of Neurology, University of California, Los Angeles, LA (D.S.L.)
| | - Italo Linfante
- Department of Interventional Neuroradiology and Neuroendovascular Surgery, Miami Cardiac and Vascular Institute, Baptist Hospital of Miami, FL (I.L.)
| | - Edgar A Samaniego
- Department of Neurology, The University of Iowa Hospitals and Clinics (E.A.S.)
| | - Gabor Toth
- Cerebrovascular Center, Neurological Institute, Cleveland Clinic, OH (G.T.)
| | - Osama O Zaidat
- Department of Neuroscience and Stroke Program, Bon Secours Mercy Health St Vincent Hospital, Toledo, OH (O.O.Z.)
| | - Pervinder Bhogal
- Department of Interventional Neuroradiology, The Royal London Hospital, Barts NHS Trust, United Kingdom (P.B.)
| | - Adam Arthur
- Department of Neurosurgery, University of Tennessee Health Science Center, Memphis (A.A.)
| | - Ajay K Wakhloo
- Department of Radiology, TUFTS University School of Medicine, Boston, MA (A.K.W.)
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Tang T, Zhou J, Thomas AM, Li D, Li S. A systematic review of application of frequency-domain optical coherence tomography in cerebral large artery atherosclerosis. Neuroradiology 2025; 67:1139-1151. [PMID: 40278846 DOI: 10.1007/s00234-025-03625-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2025] [Accepted: 04/15/2025] [Indexed: 04/26/2025]
Abstract
AIMS Frequency-domain optical coherence tomography (FD-OCT) is an emerging intravascular imaging modality that offers exceptional spatial resolution in interventional neuroradiology. We aimed to systematically review clinical studies on the applications of FD-OCT in cerebral large artery atherosclerosis (LAA). METHODS A systematic literature review of PubMed, Embase, and Cochrane Library was conducted to identify eligible studies published before 1 March, 2025. Eligible studies included all clinical articles written in English that reported the applications of FD-OCT in patients diagnosed with LAA. RESULTS A total of 50 studies with 1134 patients were included. FD-OCT was considered to be a feasible intravascular imaging modality as successful imaging could be achieved in 87.0% of patients with a 1.2% periprocedural complication rate. Unsuccessful FD-OCT imaging was attributed primarily to its current limitations, particularly inadequate blood clearance and failure to navigate the tortuous cerebrovascular anatomy or stenosis. The majority of the included studies (35/50) employed FD-OCT to evaluate extracranial atherosclerotic stenosis. FD-OCT could better stratify subsequent stroke risk by adequately identifying features of plaque vulnerability such as thin-cap fibroatheroma, neovascularization, and cholesterol crystal. Through accurately assessing stent-vessel interaction, FD-OCT has the potential to guide the selection of tailored interventions during carotid artery stenting. Recent research (10/50) has shown its potential utility for intracranial atherosclerotic stenosis, including culprit lesion differentiation, peri-intervention evaluation, and mechanistic insight into pathophysiology of stenosis and in-stent restenosis. As for acute ischemic stroke, FD-OCT following thrombectomy can potentially guide the selection of tailored adjunctive treatments to optimize clinical outcomes by assessing the intrinsic properties of the culprit lesion. CONCLUSIONS FD-OCT has emerged as a valuable intravascular imaging tool for evaluating the intrinsic properties of culprit lesions and stent-vessel interactions, showing substantial potential in the diagnosis, evaluation, and treatment of cerebral LAA.
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Affiliation(s)
- Tao Tang
- Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | | | - Aline M Thomas
- The Johns Hopkins University School of Medicine, Baltimore, USA
| | - Di Li
- Central Hospital of Dalian University of Technology, Dalian, China
| | - Shen Li
- Beijing Shijitan Hospital, Capital Medical University, Beijing, China.
- Capital Medical University, Beijing, China.
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Zhong J, Li G, Lv Z, Chen J, Wang C, Shao A, Gong Z, Wang J, Liu S, Luo J, Yang S, Wu S, Ning L, Wang Z, Li J, Wu Y. Neuromodulation of Cerebral Blood Flow: A Physiological Mechanism and Methodological Review of Neurovascular Coupling. Bioengineering (Basel) 2025; 12:442. [PMID: 40428061 PMCID: PMC12108752 DOI: 10.3390/bioengineering12050442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2025] [Revised: 04/20/2025] [Accepted: 04/21/2025] [Indexed: 05/29/2025] Open
Abstract
Neurovascular coupling (NVC) refers to the dynamic regulation of cerebral blood flow via neuronal activity, a mechanism crucial for maintaining normal brain function. This review elucidates the intricate physiological mechanisms underlying NVC, emphasizing the coordinated roles of neurons, glial cells, and vascular cells in mediating activity-induced changes in blood flow. We examine how NVC is impaired in neurological disorders such as Alzheimer's disease and stroke, where the dysfunction of this coupling contributes to neurodegeneration and neurological deficits. A broad range of techniques for assessing NVC is discussed-encompassing the established modalities like transcranial Doppler, near-infrared spectroscopy, and functional magnetic resonance imaging (fMRI), as well as emerging technologies such as functional ultrasound imaging and miniaturized endoscopy that enable high-resolution monitoring in deep brain regions. We also highlight the computational modeling approaches for simulating NVC dynamics and identify the novel biomarkers of NVC dysfunction with potential utility in early diagnosis. Finally, emerging translational applications-including neuromodulation techniques and targeted pharmacological interventions-are explored as means to restore normal neurovascular function. These advancements underscore the clinical significance of NVC research, paving the way for improved diagnostic tools and therapeutic strategies in neurological disorders.
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Affiliation(s)
- Jiawen Zhong
- School of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing 400054, China; (J.Z.); (Z.L.); (A.S.); (Z.G.); (J.W.); (S.L.); (J.L.); (S.Y.); (S.W.); (L.N.); (Z.W.); (J.L.)
| | - Gen Li
- School of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing 400054, China; (J.Z.); (Z.L.); (A.S.); (Z.G.); (J.W.); (S.L.); (J.L.); (S.Y.); (S.W.); (L.N.); (Z.W.); (J.L.)
| | - Zexiang Lv
- School of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing 400054, China; (J.Z.); (Z.L.); (A.S.); (Z.G.); (J.W.); (S.L.); (J.L.); (S.Y.); (S.W.); (L.N.); (Z.W.); (J.L.)
| | - Jingbo Chen
- Faculty of Naval Medicine, Naval Medical University, Shanghai 200433, China;
| | - Chunyan Wang
- School of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing 400054, China; (J.Z.); (Z.L.); (A.S.); (Z.G.); (J.W.); (S.L.); (J.L.); (S.Y.); (S.W.); (L.N.); (Z.W.); (J.L.)
| | - Ansheng Shao
- School of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing 400054, China; (J.Z.); (Z.L.); (A.S.); (Z.G.); (J.W.); (S.L.); (J.L.); (S.Y.); (S.W.); (L.N.); (Z.W.); (J.L.)
| | - Zhiwei Gong
- School of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing 400054, China; (J.Z.); (Z.L.); (A.S.); (Z.G.); (J.W.); (S.L.); (J.L.); (S.Y.); (S.W.); (L.N.); (Z.W.); (J.L.)
| | - Junjie Wang
- School of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing 400054, China; (J.Z.); (Z.L.); (A.S.); (Z.G.); (J.W.); (S.L.); (J.L.); (S.Y.); (S.W.); (L.N.); (Z.W.); (J.L.)
| | - Siqiao Liu
- School of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing 400054, China; (J.Z.); (Z.L.); (A.S.); (Z.G.); (J.W.); (S.L.); (J.L.); (S.Y.); (S.W.); (L.N.); (Z.W.); (J.L.)
| | - Jun Luo
- School of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing 400054, China; (J.Z.); (Z.L.); (A.S.); (Z.G.); (J.W.); (S.L.); (J.L.); (S.Y.); (S.W.); (L.N.); (Z.W.); (J.L.)
| | - Shuping Yang
- School of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing 400054, China; (J.Z.); (Z.L.); (A.S.); (Z.G.); (J.W.); (S.L.); (J.L.); (S.Y.); (S.W.); (L.N.); (Z.W.); (J.L.)
| | - Sibei Wu
- School of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing 400054, China; (J.Z.); (Z.L.); (A.S.); (Z.G.); (J.W.); (S.L.); (J.L.); (S.Y.); (S.W.); (L.N.); (Z.W.); (J.L.)
| | - Lin Ning
- School of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing 400054, China; (J.Z.); (Z.L.); (A.S.); (Z.G.); (J.W.); (S.L.); (J.L.); (S.Y.); (S.W.); (L.N.); (Z.W.); (J.L.)
| | - Zhinong Wang
- School of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing 400054, China; (J.Z.); (Z.L.); (A.S.); (Z.G.); (J.W.); (S.L.); (J.L.); (S.Y.); (S.W.); (L.N.); (Z.W.); (J.L.)
| | - Jiahao Li
- School of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing 400054, China; (J.Z.); (Z.L.); (A.S.); (Z.G.); (J.W.); (S.L.); (J.L.); (S.Y.); (S.W.); (L.N.); (Z.W.); (J.L.)
| | - Yu Wu
- School of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing 400054, China; (J.Z.); (Z.L.); (A.S.); (Z.G.); (J.W.); (S.L.); (J.L.); (S.Y.); (S.W.); (L.N.); (Z.W.); (J.L.)
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Stahl J, McGuire LS, Abou-Mrad T, Saalfeld S, Behme D, Alaraj A, Berg P. Feasibility Study for Multimodal Image-Based Assessment of Patient-Specific Intracranial Arteriovenous Malformation Hemodynamics. J Clin Med 2025; 14:2638. [PMID: 40283469 PMCID: PMC12028290 DOI: 10.3390/jcm14082638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2025] [Revised: 04/06/2025] [Accepted: 04/09/2025] [Indexed: 04/29/2025] Open
Abstract
Background/Objectives: Intracranial arteriovenous malformations (AVMs) exhibit a complex vasculature characterized by a locally occurring tangled nidus connecting the arterial and venous system bypassing the capillary network. Clinically available imaging modalities may not give sufficient spatial or temporal resolution. Adequate 3D models of large vascular areas and a detailed blood flow analysis of the nidus including the surrounding vessels are not available yet. Methods: Three representative AVM cases containing multimodal image data (3D rotational angiography, magnetic resonance angiography, magnetic resonance venography, and phase-contrast quantitative magnetic resonance imaging) are investigated. Image segmentation results in partial 3D models of the different vascular segments, which are merged into large-scale neurovascular models. Subsequently, image-based blood flow simulations are conducted based on the segmented models using patient-specific flow measurements as boundary conditions. Results: The segmentation results provide comprehensive 3D models of the overall arteriovenous morphology including realistic nidus vessels. The qualitative results of the hemodynamic simulations show realistic flow behavior in the complex vasculature. Feeding arteries exhibit increased wall shear stress (WSS) and higher flow velocities in two cases compared to contralateral vessels. In addition, feeding arteries are exposed to higher overall WSS with increased value variation between individual vessels (20.1 Pa ± 17.3 Pa) compared to the draining veins having a 62% lower WSS (8.9 Pa ± 5.9 Pa). Blood flow distribution is dragged towards the dominating circulation side feeding the nidus for all the cases quantified by the volume flow direction changes in the posterior communicating arteries. Conclusions: This multimodal study demonstrates the feasibility of the presented workflow to acquire detailed blood flow predictions in large-scale AVM models based on complex image data. The hemodynamic models serve as a base for endovascular treatment modeling influencing flow patterns in distally located vasculatures.
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Affiliation(s)
- Janneck Stahl
- Research Campus STIMULATE, University of Magdeburg, 39106 Magdeburg, Germany; (S.S.); (D.B.); (P.B.)
- Department of Medical Engineering, University of Magdeburg, 39106 Magdeburg, Germany
| | - Laura Stone McGuire
- Department of Neurological Surgery, University of Wisconsin-Madison, Madison, WI 53792, USA;
| | - Tatiana Abou-Mrad
- Department of Neurosurgery, University of Illinois, Chicago, IL 60612, USA; (T.A.-M.); (A.A.)
| | - Sylvia Saalfeld
- Research Campus STIMULATE, University of Magdeburg, 39106 Magdeburg, Germany; (S.S.); (D.B.); (P.B.)
- Institute for Medical Informatics and Statistics, University Hospital Schleswig-Holstein, Campus Kiel, 24105 Kiel, Germany
| | - Daniel Behme
- Research Campus STIMULATE, University of Magdeburg, 39106 Magdeburg, Germany; (S.S.); (D.B.); (P.B.)
- Department of Neuroradiology, University Clinic of Magdeburg, 39120 Magdeburg, Germany
| | - Ali Alaraj
- Department of Neurosurgery, University of Illinois, Chicago, IL 60612, USA; (T.A.-M.); (A.A.)
| | - Philipp Berg
- Research Campus STIMULATE, University of Magdeburg, 39106 Magdeburg, Germany; (S.S.); (D.B.); (P.B.)
- Department of Medical Engineering, University of Magdeburg, 39106 Magdeburg, Germany
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Quimby DL, Rothstein ES, Richmond HC, Bassily E, Mohanty BD, Sawyer R, Shih M, Young MN, Amin AP, Chaudry H, Devries J, Jones MR, Matar F, Kaplan AV, Ughi GJ, Bezerra HG. Efficacy and Safety of High-Frequency Optical Coherence Tomography (HF-OCT) for Coronary Imaging: A Multicenter Study. JOURNAL OF THE SOCIETY FOR CARDIOVASCULAR ANGIOGRAPHY & INTERVENTIONS 2025; 4:102577. [PMID: 40231063 PMCID: PMC11993863 DOI: 10.1016/j.jscai.2025.102577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/12/2024] [Revised: 01/10/2025] [Accepted: 01/14/2025] [Indexed: 04/16/2025]
Abstract
Background Optical coherence tomography (OCT) has emerged as an essential tool in coronary atherosclerosis research and has shown clinical value in optimizing percutaneous coronary intervention. Its capability to identify coronary plaque pathology and accurately detect intervention results, often overlooked by angiography, serves as a guide in managing patients with acute coronary syndromes, myocardial infarction due to nonobstructing coronary artery disease, calcified arteries, and in-stent restenosis, thus contributing to improved clinical outcomes. However, the current technology of intracoronary imaging catheters has a size approaching 3F, limiting its adoption preintervention. Furthermore, the image field of view of current OCT technologies cannot consistently offer complete visualization of coronary arteries ≥5 mm. Methods In this multicenter, single-arm study, we evaluated the efficacy and safety of a novel imaging catheter and system called high-frequency optical coherence tomography (HF-OCT). This system features a reduced-size, rapid-exchange imaging catheter with a diameter of 1.8F. HF-OCT captures 100 mm long segments of coronary arteries in just 1 second. In addition, HF-OCT provides an expanded field of view greater than 14 mm in diameter, enabling complete imaging of large coronary arteries. Results After conducting 143 imaging acquisitions in 81 unique coronary arteries across 75 patients at 3 institutions, we obtained an average clear image length of 68.8 ± 18.8 mm. Coronary arteries of varying sizes, including cases with severe stenosis, were evaluated. Comparing preintervention HF-OCT acquisitions-taken prior to any arterial manipulation-to postintervention acquisitions, no significant difference in image quality was observed (t test, P = .901). Conclusions The results of this study illustrate that a lower HF-OCT catheter profile, larger field of view, and faster pullback capabilities provide reliable imaging of coronary arteries in an all-comers, multicenter population.
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Affiliation(s)
- Donald L. Quimby
- Interventional Cardiology Center, Tampa General Hospital, Tampa, Florida
- Morsani College of Medicine, University of South Florida, Tampa, Florida
| | - Eric S. Rothstein
- Heart and Vascular Center, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire
| | - Henry C.T. Richmond
- Baptist Heart and Vascular Institute, Central Baptist Hospital, Lexington, Kentucky
| | - Emmanuel Bassily
- Interventional Cardiology Center, Tampa General Hospital, Tampa, Florida
- Morsani College of Medicine, University of South Florida, Tampa, Florida
| | - Bibhu D. Mohanty
- Interventional Cardiology Center, Tampa General Hospital, Tampa, Florida
- Morsani College of Medicine, University of South Florida, Tampa, Florida
| | - Robert Sawyer
- Baptist Heart and Vascular Institute, Central Baptist Hospital, Lexington, Kentucky
| | - Michael Shih
- Baptist Heart and Vascular Institute, Central Baptist Hospital, Lexington, Kentucky
| | - Michael N. Young
- Heart and Vascular Center, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire
| | - Amit P. Amin
- Heart and Vascular Center, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire
| | - Hannah Chaudry
- Heart and Vascular Center, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire
| | - Jimmy Devries
- Heart and Vascular Center, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire
| | - Michael R. Jones
- Baptist Heart and Vascular Institute, Central Baptist Hospital, Lexington, Kentucky
| | - Fadi Matar
- Interventional Cardiology Center, Tampa General Hospital, Tampa, Florida
- Morsani College of Medicine, University of South Florida, Tampa, Florida
| | - Aaron V. Kaplan
- Heart and Vascular Center, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire
| | - Giovanni J. Ughi
- Medical Affairs, Gentuity LLC, Sudbury, Massachusetts
- Department of Radiology, University of Massachusetts Chan Medical School, Worcester, Massachusetts
- Advanced Development, Spryte Medical LLC, Bedford, Massachusetts
| | - Hiram G. Bezerra
- Interventional Cardiology Center, Tampa General Hospital, Tampa, Florida
- Morsani College of Medicine, University of South Florida, Tampa, Florida
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Matsuda Y, Aiura R, Hirose E, Mizutani T. Longitudinal evaluation of neointimal formation using optical coherence tomography for an intracranial aneurysm with flow diverter placement in vivo: preliminary experience. J Neurointerv Surg 2025:jnis-2024-022947. [PMID: 39956617 DOI: 10.1136/jnis-2024-022947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2024] [Accepted: 02/06/2025] [Indexed: 02/18/2025]
Abstract
Placement of a flow diverter (FD) has been a mainstream treatment for intracranial aneurysms. Neointimal formation in the aneurysmal neck and stent struts is important for promoting aneurysm healing and reducing ischemic complications. Although several animal studies have reported the longitudinal evaluation of neointimal formation post-FD placement using optical coherence tomography (OCT), no human studies have been published. We describe the first case of a patient with follow-up longitudinal angiography and OCT examination at 1 and 3 months post-FD placement for an internal carotid artery aneurysm. At 1 month, the OCT images showed complete neointimal formation on stent struts of the parent artery and partial neointimal formation on the neck. The aneurysm was occluded on angiography at 3 months and all stent struts were covered with neointima on OCT images. An OCT examination may provide insights regarding the mechanism underlying the healing process of aneurysms treated by an FD.
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Affiliation(s)
- Yoshikazu Matsuda
- Department of Neurosurgery, Showa University Hospital, Shinagawa-ku, Tokyo, Japan
| | - Ryo Aiura
- Department of Neurosurgery, Showa University Hospital, Shinagawa-ku, Tokyo, Japan
| | - Eisuke Hirose
- Department of Neurosurgery, Showa University Hospital, Shinagawa-ku, Tokyo, Japan
| | - Tohru Mizutani
- Department of Neurosurgery, Showa University Hospital, Shinagawa-ku, Tokyo, Japan
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Siddiqui AH, Andersson T. Shining light on neurovascular disease. Interv Neuroradiol 2024:15910199241285962. [PMID: 39324217 PMCID: PMC11559757 DOI: 10.1177/15910199241285962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2024] [Accepted: 09/05/2024] [Indexed: 09/27/2024] Open
Abstract
Tortuosity and fragility of the intracranial vasculature have precluded the application of novel intravascular imaging modalities during the treatment of cerebrovascular pathologies. In other circulatory beds, these technologies have transformed clinical and therapeutic decision-making. A new report demonstrates the clinical use of high-resolution intravascular imaging in the human cerebrovasculature using neuro optical coherence tomography. This technology provides an unprecedented opportunity to examine the luminal dimensions of cerebrovascular disease. We expect that the neurointerventional community will rapidly adopt this technology-similar to wider adoptions by other vascular specialties-for both a better understanding of underlying disease and clarity of endovascular therapeutic safety and effectiveness.
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Affiliation(s)
- Adnan H Siddiqui
- Jacobs Institute, Buffalo, NY, USA
- University at Buffalo Jacobs School of Medicine and Biomedical Sciences, Departments of Neurosurgery and Radiology and Canon Stroke and Vascular Research Center, Buffalo, NY, USA
| | - Tommy Andersson
- Department of Neuroradiology, Karolinska University Hospital, Stockholm, Sweden
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
- Department of Medical Imaging, AZ Groeninge, Kortrijk, Belgium
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Yang S, Hu S. Perspectives on endoscopic functional photoacoustic microscopy. APPLIED PHYSICS LETTERS 2024; 125:030502. [PMID: 39022117 PMCID: PMC11251735 DOI: 10.1063/5.0201691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 06/27/2024] [Indexed: 07/20/2024]
Abstract
Endoscopy, enabling high-resolution imaging of deep tissues and internal organs, plays an important role in basic research and clinical practice. Recent advances in photoacoustic microscopy (PAM), demonstrating excellent capabilities in high-resolution functional imaging, have sparked significant interest in its integration into the field of endoscopy. However, there are challenges in achieving functional PAM in the endoscopic setting. This Perspective article discusses current progress in the development of endoscopic PAM and the challenges related to functional measurements. Then, it points out potential directions to advance endoscopic PAM for functional imaging by leveraging fiber optics, microfabrication, optical engineering, and computational approaches. Finally, it highlights emerging opportunities for functional endoscopic PAM in basic and translational biomedicine.
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Affiliation(s)
- Shuo Yang
- Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, Missouri 63130, USA
| | - Song Hu
- Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, Missouri 63130, USA
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